Listar Artículos de revista DIEC - IEKS Aldizkari artikuluak por autor UPNA "Liberal Olleta, Íñigo"
Mostrando ítems 1-20 de 23
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Addressing the impact of surface roughness on epsilon-near-zero silicon carbide substrates
Navajas Hernández, David
; Pérez Escudero, José Manuel 
; Martínez Hernández, María Elena ; Goicoechea Fernández, Javier ; Liberal Olleta, Íñigo (American Chemical Society, 2023)
Artículo / Artikulua 
Epsilon-near-zero (ENZ) media have been very actively investigated due to their unconventional wave phenomena and strengthened nonlinear response. However, the technological impact of ENZ media will be determined by the ... -
Direct observation of ideal electromagnetic fluids
Li, Hao; Zhou, Ziheng; Sun, Wangyu; Lobet, Michaël; Engheta, Nader; Liberal Olleta, Íñigo ; Li, Yue (Springer Nature, 2022)
Artículo / Artikulua
Near-zero-index (NZI) media have been theoretically identified as media where electromagnetic radiations behave like ideal electromagnetic fluids. Within NZI media, the electromagnetic power flow obeys equations similar ... -
Dispersion coding of ENZ media via multiple photonic dopants
Zhou, Ziheng; Li, Hao; Sun, Wangyu; He, Yijing; Liberal Olleta, Íñigo ; Engheta, Nader; Feng, Zhenghe; Li, Yue (Springer Nature, 2022)
Artículo / Artikulua
Epsilon-near-zero (ENZ) media are opening up exciting opportunities to observe exotic wave phenomena. In this work, we demonstrate that the ENZ medium comprising multiple dielectric photonic dopants would yield a comb-like ... -
Fundamental radiative processes in near-zero-index media of various dimensionalities
Lobet, Michaël; Liberal Olleta, Íñigo ; Knall, Erik N.; Alam, M. Zahirul; Reshef, Orad (American Chemical Society, 2020)
Artículo / Artikulua
Spontaneous emission, stimulated emission and absorption are the three fundamental radiative processes describing light-matter interactions. Here, we theoretically study the behavior of these fundamental processes inside ... -
Generalized approach to quantum interference in lossy N-port devices via a singular value decomposition
Hernández Martínez, Osmery; Liberal Olleta, Íñigo (Optica, 2022)
Artículo / Artikulua
Modeling quantum interference in the presence of dissipation is a critical aspect of quantum technologies. Including dissipation into the model of a linear device enables for assessing the detrimental impact of photon loss, ... -
Geometry-independent antenna based on Epsilon-near-zero medium
Li, Hao; Zhou, Ziheng; He, Yijing; Sun, Wangyu; Li, Yue; Liberal Olleta, Íñigo ; Engheta, Nader (Springer Nature, 2022)
Artículo / Artikulua
It is well known that electromagnetic radiation from radiating elements (e.g., antennas, apertures, etc.) shows dependence on the element’s geometry shape in terms of operating frequencies. This basic principle is ... -
Grating lobes in higher-order correlation functions of arrays of quantum emitters: directional photon bunching versus correlated directions
Liberal Olleta, Íñigo ; Ederra Urzainqui, Íñigo ; Ziolkowski, Richard W. (MDPI, 2019)
Artículo / Artikulua
Recent advances in nanofabrication and optical manipulation techniques are making it possible to build arrays of quantum emitters with accurate control over the locations of their individual elements. In analogy with ... -
Incandescent temporal metamaterials
Vázquez Lozano, Juan Enrique; Liberal Olleta, Íñigo (Nature Research, 2023)
Artículo / Artikulua
Regarded as a promising alternative to spatially shaping matter, time-varying media can be seized to control and manipulate wave phenomena, including thermal radiation. Here, based upon the framework of macroscopic quantum ... -
Light propagation and magnon-photon coupling in optically dispersive magnetic media
Bittencourt, V.A.S.V.; Liberal Olleta, Íñigo ; Viola Kusminskiy, Silvia (American Physical Society, 2022)
Artículo / Artikulua
Achieving strong coupling between light and matter excitations in hybrid systems is a benchmark for the implementation of quantum technologies. We recently proposed (Bittencourt, Liberal, and Viola-Kusminskiy, arXiv:2110.02984) ... -
Momentum considerations inside near-zero index materials
Lobet, Michaël; Liberal Olleta, Íñigo ; Vertchenko, Larissa; Lavrinenko, Andrei V.; Engheta, Nader; Mazur, Eric (Springer Nature, 2022)
Artículo / Artikulua
Near-zero index (NZI) materials, i.e., materials having a phase refractive index close to zero, are known to enhance or inhibit light-matter interactions. Most theoretical derivations of fundamental radiative processes ... -
Near-zero-index media as electromagnetic ideal fluids
Liberal Olleta, Íñigo ; Lobet, Michaël; Li, Yue; Engheta, Nader (National Academy of Sciences, 2020)
Artículo / Artikulua
Near-zero-index (NZI) supercoupling, the transmission of electromagnetic waves inside a waveguide irrespective of its shape, is a counterintuitive wave effect that finds applications in optical interconnects and engineering ... -
Nonlinear metamaterial absorbers enabled by photonic doping of epsilon-near-zero metastructures
Nahvi, Ehsan; Liberal Olleta, Íñigo ; Engheta, Nader (American Physical Society, 2020)
Artículo / Artikulua
We theoretically demonstrate an approach for designing absorbers with strongly intensity-dependent absorption. The proposed absorbers consist of a spacer layer between a top resistive sheet and an underlying metallic ... -
Quantum antenna arrays: the role of quantum interference on direction-dependent photon statistics
Liberal Olleta, Íñigo ; Ederra Urzainqui, Íñigo ; Ziolkowski, Richard W. (American Physical Society, 2018)
Artículo / Artikulua
We investigate the role of quantum interference phenomena on the characteristics of the fields radiated by an array of quantum emitters. In analogy to, but distinct from, classical outcomes, we demonstrate that the array ... -
Quantum antireflection temporal coatings: quantum state frequency shifting and inhibited thermal noise amplification
Liberal Olleta, Íñigo ; Vázquez Lozano, Juan Enrique; Pacheco-Peña, Víctor (wiley, 2023)
Artículo / Artikulua
The quantum optical response of antireflection temporal coatings (ATCs), that is, matching temporal layers that suppress the generation of backward waves in temporal boundaries, is investigated. The results reveal that ... -
Quantum interference in Wilkinson power dividers
Hernández Martínez, Osmery; Ortega Gómez, Ángel; Bravo Acha, Mikel ; Liberal Olleta, Íñigo (John Wiley & Sons, 2022)
Artículo / Artikulua
Scaling up quantum technologies entails the challenge of developing large-scale and high-performance photonic quantum networks. Engineering novel optical components, with a compact footprint and advanced functionalities, ... -
Shaping the quantum vacuum with anisotropic temporal boundaries
Vázquez Lozano, Juan Enrique; Liberal Olleta, Íñigo (De Gruyter, 2022)
Artículo / Artikulua
Temporal metamaterials empower novel forms of wave manipulation with direct applications to quantum state transformations. In this work, we investigate vacuum amplification effects in anisotropic temporal boundaries. Our ... -
Silicon carbide as a material-based high-impedance surface for enhanced absorption within ultra-thin metallic films
Pérez Escudero, José Manuel ; Buldain, Iban; Beruete Díaz, Miguel ; Goicoechea Fernández, Javier ; Liberal Olleta, Íñigo (Optical Society of America, 2020)
Artículo / Artikulua
The absorption of infrared radiation within ultra-thin metallic films is technologically relevant for different thermal engineering applications and optoelectronic devices, as well as for fundamental research on sub-nanometer ... -
Soft surfaces and enhanced nonlinearity enabled via epsilon-near-zero media doped with zero-area perfect electric conductor inclusions
Nahvi, Ehsan; Liberal Olleta, Íñigo ; Engheta, Nader (Optical Society of America, 2020)
Artículo / Artikulua
Introducing a dielectric inclusion inside an epsilon-near-zero (ENZ) host has been shown to dramatically affect the effective permeability of the host for a TM-polarized incident wave, a concept coined as photonic doping ... -
Spectrally stable thermal emitters enabled by material-based high-impedance surfaces
Navajas Hernández, David; Pérez Escudero, José Manuel ; Liberal Olleta, Íñigo (Royal Society of Chemistry, 2023)
Artículo / Artikulua
Radiative thermal engineering with subwavelength metallic bodies is a key element for heat and energy management applications, communication and sensing. Here, we numerically and experimentally demonstrate metallic thermal ... -
Structural dispersion-based reduction of loss in epsilon-near-zero and surface plasmon polariton waves
Li, Yue; Liberal Olleta, Íñigo ; Engheta, Nader (American Association for the Advancement of Science, 2019)
Artículo / Artikulua
The field of plasmonics has substantially affected the study of light-matter interactions at the subwavelength scale. However, dissipation losses still remain an inevitable obstacle in the development of plasmonic-based ...
